There is another possible explanation. All state laws are different and it is possible that either Thor wires them for the state in which the dealer is located, the dealer re-wires them, or Thor wires them based on the most restrictive state law.
FWIW, here is a link to the Telematic laws for the various states.
Telematics - AAA Digest of Motor Laws
The original poster with the Class C would fall into the law concerning the television mounted forward of the back of the driver's seat.
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